/* Base Styles */
:root {
    --primary-color: #1e40af;
    --primary-light: #3b82f6;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --bg-light: #f8fafc;
    --white: #ffffff;
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    overflow-x: hidden;
    background: var(--bg-light);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--primary-color);
    line-height: 1.2;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.2rem; }
h3 { font-size: 1.8rem; }
h4 { font-size: 1.2rem; }

p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* Layout Components */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
    width: 100%;
}

/* Navigation */
nav {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
}

/* Mobile Navigation */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
    position: relative;
}

.mobile-nav-toggle span::before,
.mobile-nav-toggle span::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

.mobile-nav-toggle span::before {
    transform: translateY(-8px);
}

.mobile-nav-toggle span::after {
    transform: translateY(8px);
}

.mobile-nav-toggle.active span {
    background: transparent;
}

.mobile-nav-toggle.active span::before {
    transform: rotate(45deg);
}

.mobile-nav-toggle.active span::after {
    transform: rotate(-45deg);
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: var(--white);
    padding: 6rem 2rem 2rem;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.mobile-nav.active {
    transform: translateX(0);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.mobile-nav-links a {
    text-decoration: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.mobile-nav-links a:hover,
.mobile-nav-links a.active {
    color: var(--primary-color);
}

/* Footer */
footer {
    background: var(--text-primary);
    color: var(--white);
    padding: 2rem;
    text-align: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    section {
        padding: 4rem 0;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-nav-toggle {
        display: block;
    }
    
    .mobile-nav {
        display: block;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Dropdown Menu */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown span {
    color: var(--text-primary);
    cursor: pointer;
    margin-left: 2rem;
    font-weight: 500;
    transition: color 0.3s ease;
}

.dropdown span:hover,
.dropdown span.active {
    color: var(--primary-color);
}

.dropdown-content {
    display: none;
    position: absolute;
    background: var(--white);
    min-width: 250px;
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0;
    z-index: 1000;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
}

.dropdown:hover .dropdown-content {
    display: block;
}

.dropdown-content a {
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    display: block;
    margin: 0 !important;
    transition: all 0.3s ease;
}

.dropdown-content a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
}